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Fulltext 99mTc-sodium phytate is a valid alternative to the gold-standard 99mTc-sulfur colloid in the measurement of gastric emptying among healthy multi-ethnic Asian population: results of a randomized cross-over trial

Mat Nawi N, Tagiling N, Mohd Rohani MF, Wan Zainon WMN, Zanial MS, Wong MS, et al.

BMC Gastroenterol, 2020 Aug 31;20(1):293.
PMID: 32867699 DOI: 10.1186/s12876-020-01426-5

BACKGROUND: It is unclear if the 99mTc-sodium phytate (99mTc-SP) is as reliable as the gold-standard 99mTc-sulfur colloid (99mTc-SC) for gastric emptying scintigraphy (GES). This study is aimed to compare the emptying rates of both radiotracers in a prospective, randomized cross-over trial and to determine the normative data of a healthy multi-ethnic Asian population.
METHODS: Out of the 44 healthy individuals screened, 31 (14 females; mean age: 28.4 ± 7.0 years) were enrolled and underwent GES using the standardized egg-white meal. All participants were randomly assigned to either 99mTc-SP or 99mTc-SC on the first GES session before crossed over to the other formulation after 2 weeks.
RESULTS: Both kits achieved the radiochemical purities of > 95%. The median rate (95th upper normative limit) of gastric emptying, reported as total gastric meal retention between 99mTc-SP and 99mTc-SC, was found to be comparable at all measured time points: 0.5 h [85.0% (96.6%) vs. 82.0% (94.0%)], 1 h [70.0% (86.4%) vs. 65.0% (86.6%)], 2 h [31.0% (55.8%) vs. 25.0% (64.4%)], 3 h [7.0% (26.3%) vs. 5.0% (29.9%)], and 4 h [3.0% (10.3%) vs. 2.0% (9.9%)]; P > 0.05. In addition, both radiotracers correlated well (Kendall's Tau (τ) coefficient = 0.498, P

Matched MeSH terms: Colloids
A Prospective Observational Study of Rational Fluid Therapy in Asian Intensive Care Units: Another Puzzle Piece in Fluid Therapy

Jacob M, Sahu S, Singh YP, Mehta Y, Yang KY, Kuo SW, et al.

Indian J Crit Care Med, 2020 Nov;24(11):1028-1036.
PMID: 33384507 DOI: 10.5005/jp-journals-10071-23653

Introduction: Fluid therapy in critically ill patients, especially timing and fluid choice, is controversial. Previous randomized trials produced conflicting results. This observational study evaluated the effect of colloid use on 90-day mortality and acute kidney injury (RIFLE F) within the Rational Fluid Therapy in Asia (RaFTA) registry in intensive care units.
Materials and methods: RaFTA is a prospective, observational study in Asian intensive care unit (ICU) patients focusing on fluid therapy and related outcomes. Logistic regression was performed to identify risk factors for increased 90-day mortality and acute kidney injury (AKI).
Results: Twenty-four study centers joined the RaFTA registry and collected 3,187 patient data sets from November 2011 to September 2012. A follow-up was done 90 days after ICU admission. For 90-day mortality, significant risk factors in the overall population were sepsis at admission (OR 2.185 [1.799; 2.654], p < 0.001), cumulative fluid balance (OR 1.032 [1.018; 1.047], p < 0.001), and the use of vasopressors (OR 3.409 [2.694; 4.312], p < 0.001). The use of colloids was associated with a reduced risk of 90-day mortality (OR 0.655 [0.478; 0.900], p = 0.009). The initial colloid dose was not associated with an increased risk for AKI (OR 1.094 [0.754; 1.588], p = 0.635).
Conclusion: RaFTA adds the important finding that colloid use was not associated with increased 90-day mortality or AKI after adjustment for baseline patient condition.
Clinical significance: Early resuscitation with colloids showed potential mortality benefit in the present analysis. Elucidating these findings may be an approach for future research.
How to cite this article: Jacob M, Sahu S, Singh YP, Mehta Y, Yang K-Y, Kuo S-W, et al. A Prospective Observational Study of Rational Fluid Therapy in Asian Intensive Care Units: Another Puzzle Piece in Fluid Therapy. Indian J Crit Care Med 2020;24(11):1028-1036.

Matched MeSH terms: Colloids
Fulltext An experimental study on pile spacing effects under lateral loading in sand

Khari M, Kassim KA, Adnan A

ScientificWorldJournal, 2013;2013:734292.
PMID: 24453900 DOI: 10.1155/2013/734292

Grouped and single pile behavior differs owing to the impacts of the pile-to-pile interaction. Ultimate lateral resistance and lateral subgrade modulus within a pile group are known as the key parameters in the soil-pile interaction phenomenon. In this study, a series of experimental investigation was carried out on single and group pile subjected to monotonic lateral loadings. Experimental investigations were conducted on twelve model pile groups of configurations 1 × 2, 1 × 3, 2 × 2, 3 × 3, and 3 × 2 for embedded length-to-diameter ratio l/d = 32 into loose and dense sand, spacing from 3 to 6 pile diameter, in parallel and series arrangement. The tests were performed in dry sand from Johor Bahru, Malaysia. To reconstruct the sand samples, the new designed apparatus, Mobile Pluviator, was adopted. The ultimate lateral load is increased 53% in increasing of s/d from 3 to 6 owing to effects of sand relative density. An increasing of the number of piles in-group decreases the group efficiency owing to the increasing of overlapped stress zones and active wedges. A ratio of s/d more than 6d is large enough to eliminate the pile-to-pile interaction and the group effects. It may be more in the loose sand.

Matched MeSH terms: Colloids/chemistry*
An immunofluorescence study of lichen planus among Asians in Singapore

Lim KB

Ann Acad Med Singap, 1988 Oct;17(4):545-7.
PMID: 3223741

Forty-five Asian patients (Indians 35, Chinese 8, Malay 2) with histologically proven lichen planus were studied by immunofluorescence. The most characteristic feature, seen in 93% of the cases, was shaggy deposition of fibrinogen along the basement membrane. Immunoglobulin deposition along the basement membrane was notably, absent. Colloid bodies were observed in 87% of the cases. Fibrinogen was the most common immunoreactant, and its presence in colloid bodies was always associated with fibrinogen deposition along the basement membrane zone. Colloid bodies also contained a variety of other immunoreactants. However, staining for IgM was noted to be the most intense. The combination of shaggy deposition of fibrinogen along the basement membrane, in the absence of immunoglobulins, and the presence of colloid bodies around the basement membrane zone, is highly characteristic of lichen planus. The pattern of immunofluorescence among Asians with lichen planus, conforms to that observed in other races. There did not appear to be any difference in the immunofluorescence staining with pattern in the three racial groups studied.

Matched MeSH terms: Colloids/analysis
Application of seaweeds to develop new food products with enhanced shelf-life, quality and health-related beneficial properties

Roohinejad S, Koubaa M, Barba FJ, Saljoughian S, Amid M, Greiner R

Food Res Int, 2017 09;99(Pt 3):1066-1083.
PMID: 28865618 DOI: 10.1016/j.foodres.2016.08.016

Edible seaweeds are a good source of antioxidants, dietary fibers, essential amino acids, vitamins, phytochemicals, polyunsaturated fatty acids, and minerals. Many studies have evaluated the gelling, thickening and therapeutic properties of seaweeds when they are used individually. This review gives an overview on the nutritional, textural, sensorial, and health-related properties of food products enriched with seaweeds and seaweed extracts. The effect of seaweed incorporation on properties of meat, fish, bakery, and other food products were highlighted in depth. Moreover, the positive effects of foods enriched with seaweeds and seaweed extracts on different lifestyle diseases such as obesity, dyslipidemia, hypertension, and diabetes were also discussed. The results of the studies demonstrated that the addition of seaweeds, in powder or extract form, can improve the nutritional and textural properties of food products. Additionally, low-fat products with less calories and less saturated fatty acids can be prepared using seaweeds. Moreover, the addition of seaweeds also affected the health properties of food products. The results of these studies demonstrated that the health value, shelf-life and overall quality of foods can be improved through the addition of either seaweeds or seaweed extracts.

Matched MeSH terms: Colloids/isolation & purification; Colloids/pharmacology
Characterization of polymeric micelles for pulmonary delivery of beclomethasone dipropionate

Gaber NN, Darwis Y, Peh KK, Tan YT

J Nanosci Nanotechnol, 2006 10 20;6(9-10):3095-101.
PMID: 17048523

The potential of using poly-(ethylene oxide)-block-distearoyl phosphatidyl-ethanolamine (mPEG-DSPE) polymer to prepare BDP-loaded micelles with high entrapment efficiency and mass median aerodynamic diameter of less than 5 microm demonstrating sustained release properties was evaluated. The result showed that lyophilized BDP-loaded polymeric micelles with entrapment efficiency of more than 96% could be achieved. Entrapment efficiency was affected by both the drug to polymer molar ratio and the amount of drug used. Investigation using FTIR and DSC confirmed that there was no chemical or physical interaction and the drug was molecularly dispersed within the micelles. TEM images showed that the drug-loaded polymeric micelles were spherical in shape with multivesicular morphology. Further analysis by photon correlation spectroscopy indicated that the particle size of the BDP-loaded micelles was about 22 nm in size. In vitro drug release showed a promising sustained release profile over six days following the Higuchi model. The mass median aerodynamic diameter and fine particle fraction were suitable for pulmonary delivery. Moreover, the small amount of deposited drug in the induction port (throat deposition) suggested possible reduction in incidence of oropharyngeal candidiasis, a side effect normally associated with inhaled corticosteroids therapy. The high encapsulation efficiency, comparable inhalation properties, sustained release behavior together with biocompatibility nature of the polymer support the potential of BDP-loaded polymeric micelles as a versatile delivery system to be used in the treatment of asthma and chronic obstructive pulmonary disease.

Matched MeSH terms: Colloids/chemistry*
Colloid mobilization and heavy metal transport in the sampling of soil solution from Duckum soil in South Korea

Lee S, Ko IW, Yoon IH, Kim DW, Kim KW

Environ Geochem Health, 2019 Feb;41(1):469-480.
PMID: 29574658 DOI: 10.1007/s10653-018-0099-7

Colloid mobilization is a significant process governing colloid-associated transport of heavy metals in subsurface environments. It has been studied for the last three decades to understand this process. However, colloid mobilization and heavy metal transport in soil solutions have rarely been studied using soils in South Korea. We investigated the colloid mobilization in a variety of flow rates during sampling soil solutions in sand columns. The colloid concentrations were increased at low flow rates and in saturated regimes. Colloid concentrations increased 1000-fold higher at pH 9.2 than at pH 7.3 in the absence of 10 mM NaCl solution. In addition, those were fourfold higher in the absence than in the presence of the NaCl solution at pH 9.2. It was suggested that the mobility of colloids should be enhanced in porous media under the basic conditions and the low ionic strength. In real field soils, the concentrations of As, Cr, and Pb in soil solutions increased with the increase in colloid concentrations at initial momentarily changed soil water pressure, whereas the concentrations of Cd, Cu, Fe, Ni, Al, and Co lagged behind the colloid release. Therefore, physicochemical changes and heavy metal characteristics have important implications for colloid-facilitated transport during sampling soil solutions.

Matched MeSH terms: Colloids/chemistry*
Fulltext Combined Techniques of Non-invasive 99mTc-Besilesomab/99mTc-Sulfur Colloid with Hybrid SPECT/CT Imaging in Characterising Cellulitis from Symptomatic Perimegaprosthetic Infection: A Case Report

Tagiling N, Mohd-Rohani MF, Wan-Sohaimi WF, Faisham WI, Nawi NM

Malays Orthop J, 2020 Nov;14(3):188-193.
PMID: 33403085 DOI: 10.5704/MOJ.2011.032

Megaprosthesis is used to restore the form and function of massive skeletal defects, but it is accompanied by risks of failure, mainly due to perimegaprosthetic infection (PMI). In practice, the diagnosis of infected megaprosthesis among patients with a high index of clinical suspicion, elevated serological markers, and multiple negative or inconclusive imaging can be very challenging and poses a diagnostic conundrum to many orthopaedic surgeons. We present the case of a symptomatic 26-year-old female with large B-cell lymphoma who developed cellulitis with suspected complication of PMI 15 months post-implantation. The combination of advanced nuclear medicine imaging strategies, i.e., 99mTc-besilesomab/99mTc-sulfur colloid scintigraphy with hybrid single-photon emission computed tomography/computed tomography (SPECT/CT) scanning helps to characterise and delineate both infections. Invasive procedures such as joint aspiration and biopsy were avoided, and the patient was successfully treated with antibiotics. Hence, we report a case where advanced imaging modalities were decisive in the investigation of PMI.

Matched MeSH terms: Colloids
Continuous separation of colloidal particles using dielectrophoresis

Yunus NA, Nili H, Green NG

Electrophoresis, 2013 Apr;34(7):969-78.
PMID: 23436439 DOI: 10.1002/elps.201200466

Dielectrophoresis is the movement of particles in nonuniform electric fields and has been of interest for application to manipulation and separation at and below the microscale. This technique has the advantages of being noninvasive, nondestructive, and noncontact, with the movement of particle achieved by means of electric fields generated by miniaturized electrodes and microfluidic systems. Although the majority of applications have been above the microscale, there is increasing interest in application to colloidal particles around a micron and smaller. This paper begins with a review of colloidal and nanoscale dielectrophoresis with specific attention paid to separation applications. An innovative design of integrated microelectrode array and its application to flow-through, continuous separation of colloidal particles is then presented. The details of the angled chevron microelectrode array and the test microfluidic system are then discussed. The variation in device operation with applied signal voltage is presented and discussed in terms of separation efficiency, demonstrating 99.9% separation of a mixture of colloidal latex spheres.

Matched MeSH terms: Colloids/isolation & purification*; Colloids/chemistry
Fulltext D-Optimal mixture design on melting and textural properties of dark chocolate as affected by cocoa butter substitution with Xanthan gum/Guar gum blends

Amir, I.Z., Sharon, W.X.R., Syafiq, A.

International Food Research Journal, 2013;20(4):1991-1995.
MyJurnal

Impacts and relationships on physicochemical properties in dark chocolate produced from different substitution for cocoa butter by Xanthan gum (XG) and Guar gum (GG) blends were determined using D-optimal mixture design. This study involved three levels of substitution which are 5%, 10% and 15% with constrained cocoa butter content and random blend of gums. Linear design models were applied to analyze parameters including texture (hardness) measurement and melting profile of fat crystal. Products experienced undesirable raises of hardness jointly with the increment of gums incorporation across the level of cocoa butter replacement from 5% to 15%. Similar trend was also agreed with the melting behavior of products as their melting point increased with the gradual diminution of cocoa butter. After all, the replacement of cocoa butter using hydrocolloids was deemed possible as there were products whose melting point and hardness fell in the acceptable range.

Matched MeSH terms: Colloids
Development and physical characterization of polymer-fish oil bigel (hydrogel/oleogel) system as a transdermal drug delivery vehicle

Rehman K, Mohd Amin MC, Zulfakar MH

J Oleo Sci, 2014;63(10):961-70.
PMID: 25252741

Polymer-Fish oil bigel (hydrogel/oleogel colloidal mixture) was developed by using fish oil and natural (sodium alginate) and synthetic (hydroxypropyl methylcellulose) polymer for pharmaceutical purposes. The bigels were closely monitored and thermal, rheological and mechanical properties were compared with the conventional hydrogels for their potential use as an effective transdermal drug delivery vehicle. Stability of the fish oil fatty acids (especially eicosapentanoic acid, EPA and docosahexanoic acid, DHA) was determined by gas chromatography and the drug content (imiquimod) was assessed with liquid chromatography. Furthermore, in vitro permeation study was conducted to determine the capability of the fish oil-bigels as transdermal drug delivery vehicle. The bigels showed pseudoplastic rheological features, with excellent mechanical properties (adhesiveness, peak stress and hardness), which indicated their excellent spreadability for application on the skin. Bigels prepared with mixture of sodium alginate and fish oil (SB1 and SB2), and the bigels prepared with the mixture of hydroxypropyl methylcellulose and fish oil (HB1-HB3) showed high cumulative permeation and drug flux compared to hydrogels. Addition of fish oil proved to be beneficial in increasing the drug permeation and the results were statistically significant (p < 0.05, one-way Anova, SPSS 20.0). Thus, it can be concluded that bigel formulations could be used as an effective topical and transdermal drug delivery vehicle for pharmaceutical purposes.

Matched MeSH terms: Colloids
Do colloids in comparison to crystalloids for fluid resuscitation improve mortality?

Naing CM, Win DK

Trans R Soc Trop Med Hyg, 2010 May;104(5):311-2.
PMID: 20206954 DOI: 10.1016/j.trstmh.2010.02.001

Permanent neurological impairment or death arising from hospital-acquired hyponatremia in both children and adults is well documented. The choice of intravenous fluids for fluid resuscitation in critically ill patients is a top priority in evidence-based medicine. The question of whether colloids in comparison to crystalloids can improve mortality in such cases remains to be answered. Well powered, randomized clinical trials addressing the comparative efficacy of different types of intravenous fluids is a high priority as is the ethical justification for such trials. The understanding of the pathophysiological process serves important information on clinical practice.

Matched MeSH terms: Colloids/adverse effects; Colloids/therapeutic use*
Fulltext Dough mixing and thermal properties including the pasting profiles of composite flour blends with added hydrocolloids

Ho, L. H., Noor Aziah, A. A.

International Food Research Journal, 2013;20(2):911-917.
MyJurnal

Dough mixing and thermal properties including the pasting profiles of various commercial wheat flour (WF)-banana pseudostem flour (BP)-hydrocolloid blends were determined using a farinograph, differential scanning calorimetry (DSC) and a rapid-visco analyser (RVA). The prepared blends were WF, WF substituted with 10% BP (10BP) and 10BP with added 0.8% w/w (flour weight basis) xanthan gum (XG) or sodium carboxymethylcellulose (CMC) (10BPX and 10BPC, respectively). The dough of 10BP and the doughs containing XG or CMC reduced stability and breakdown time compared with the WF dough. All dough containing BP demonstrated greater water absorption and mixing tolerance index values than the WF dough. The substitution of 10% BP into WF and the addition of hydrocolloids did not significantly affect the conclusion temperature (Tc) of the mixture, but did increased the onset temperature (To), peak temperature (Tp) and decreased the gelatinisation enthalpy change (ΔHg) of the blends. Samples of 10BP, 10BPX and 10BPC significantly decreased (p

Matched MeSH terms: Colloids
Early fluid resuscitation in the management of major burns: ten years experience in Tabuk, Saudi Arabia

Rahoma AH

JUMMEC, 2002;7:127-131.

During the period from January 1992 up to the end of July 2001, the Burns Unit in King Khalid C Hospital treated 1735 cases of burns. The burns cases were of varying causes, age groups, degree, depth and extent. The formula used in lTeating these burns patients was a modification of Parkland fonnula. The fluid used was Ringer lactate solution. This fluid was administered for the first 3 days post burn until the general condilion of the palient was sfabilized. Early oral intake was encouraged in aU patients and was started as early as the second or the third day. Colloids were given by the end of the third or even the fourth day and according to the individual patients' needs. The results of this treatment regime significantly avoided renal complications and ensured patient rehydration. KEYWORDS; Major burns, fluids resuscitation

Matched MeSH terms: Colloids
Fulltext Effect of different hydrocolloids on the physicochemical properties, microbiological quality and sensory acceptance of fermented cassava ( tapai ubi ) ice cream

Halim, N.R.A., Shukri, W.H.Z., Lani, M.N., Sarbon, N.M.

International Food Research Journal, 2014;21(5):1825-1836.
MyJurnal

The aim of this work is to study the effect of hydrocolloids; guar gum (GG), xanthan gum (XG) and carboxymethyl cellulose (CMC) on the physicochemical properties, microbiological quality and sensory properties in order to investigate the potential of applying fermented cassava (tapai ubi) in ice cream. Fermented cassava ice cream (FCI) incorporated with the three types of hydrocolloid was prepared and the protein content, pH value, overrun, colour, hardness, microstructure, FTIR spectrum and sensory acceptance of all samples were determined. Fermented cassava ice cream incorporated with XG showed the highest protein content (14.88%), pH value (pH 6.07), and overrun value (4.27%) as compared to the fermented cassava ice cream incorporated with GG and CMC. Meanwhile, ice cream incorporated with GG possessed the highest L* (94.43) and hardness (3693.15 g) value as compared to XG and CMC. The microstructure study showed that the difference in uniformity at the interface obtained with different types of the hydrocolloids added demonstrated the effect of fat absorption at the air interfaces. The FTIR spectrum investigated indicated that the addition of the fermented cassava to FCI had increased the OH group in the ice cream as compared to the control. All samples were microbial safe as the total plate counts in all samples were below the standard as prescribed in Food Act 1983 with no presence of E. coli . In conclusion, fermented cassava ice cream with XG showed the good quality in terms of its pH value, overrun, total plate count and overall acceptability.

Matched MeSH terms: Colloids
Fulltext Effect of different types of hydrocolloids on the physical and sensory properties of ice cream with fermented glutinous rice ( tapai pulut)

Shukri, W.H.Z., Hamzah, E.N.H., Halim, N.R.A., Isa, M.I.N., Sarbon, N.M.

International Food Research Journal, 2014;21(5):1777-1787.
MyJurnal

The aim of this work is to study the effect of hydrocolloids (guar gum, xanthan gum and carboxymethyl cellulose (CMC) on the physical properties and sensory evaluation of ice cream produced in order to investigate the potential of applying fermented glutinous rice (tapai pulut) as a value-added ingredient. The addition of 25% fermented glutinous rice was the most reliable amount to enhance the physical and sensory properties of ice cream when incorporating hydrocolloids. The addition of hydrocolloids significantly (p < 0.05) increased the pH, firmness, overrun, and melting rate of fermented glutinous rice ice cream. The addition of guar gum scored the highest firmness value (5403 g) followed by CMC (4630 g) and xanthan gum (3481g). Fermented glutinous rice ice cream with xanthan gum added, induced a noticeable change in overrun value (62%) while the addition of CMC decreased the melting rate compared to the control. The FTIR spectrum of fermented glutinous rice ice cream with different hydrocolloids containing carboxyl, amide and carbonyl group was appeared at 3362-3379 cm-1 , 1639-1640 cm-1 and 1026-1064 cm-1, respectively. In conclusion, the addition of xanthan gum presented great potential to improve the quality of fermented glutinous rice ice cream produced in terms of its firmness, overrun and melting rate.

Matched MeSH terms: Colloids
Fulltext Effect of sugar beet pectin on oil uptake in fried banana and its acceptability

Siti Suhara Ramli, Aini `Izzati Mohd Rosdi

ESTEEM Academic Journal, 2019;15(1):64-75.
MyJurnal

Fried banana is one of the popular local snacks in Malaysia. However, tremendous interest in healthy food has risen among consumers and producers resulting in a rising demand for low-fat foods. Thus, oil uptake needs to be considered during frying since it also affects the flavour, odour
and general organoleptic properties of the food. The main objective of this study is to determine the effect of different concentrations of sugar beet pectin in the frying batter of fried banana and introduce the new usage of sugar beet pectin as one of the ingredients in the frying batter. Three different formulations of frying batter were prepared using 1%, 1.5% and 2% of sugar beet pectin (SBP) together with other ingredients including rice flour, water, plain flour, baking powder and salt. The addition of sugar beet pectin improved the characteristic of the batter as well as the fried banana crust. The moisture content of the crust increased about 7.6% when 1.5% SBP (F2) was used in the formulation thereby reducing the oil absorption by 8.5%. The crust crispiness also increased by 16.7% when 1.5% SBP (F2) was added to the frying batter formulation. Batter pick-up value was found highest in F1 (1% SBP) with 8.84% increment as compared to batter with no added hydrocolloids. Addition of SBP in batter formulations significantly increased the batter pick-up value. In terms of acceptability, F1 (1% SBP) was the most preferred by the panellist which was due to the appearance and colour of the fried bananas. All formulations obtained attributes scores higher than six thus were accepted by the panellists.

Matched MeSH terms: Colloids
Fulltext Effects of different drying methods and hydrocolloids on quality properties of semi-dried catfish jerky

Ishamri Ismail, Nur Husna Mohd Fauzi, Mastura Zahidi Baki, Ho, Lee Hoon

Malaysian Journal of Applied Sciences, 2018;2(1):11-18.
MyJurnal

This study was carried out to evaluate the effects of different drying methods (sun drying, cabinet
drying and convection oven) and hydrocolloids (carrageenan and alginate) on physicochemical
properties of semi-dried catfish jerky. The concentration of hydrocolloids used was 1% and 2%.
Samples without the addition of hydrocolloid served as the control group. The water activity of semidried catfish jerky decreased with the addition of hydrocolloids. For colour properties, lightness (L*)
value of semi-dried catfish jerky increased with the increased concentration of hydrocolloids. The
addition of 2% alginate (2%A) and 2% carrageenan (2%C) showed higher lightness (L*) than the
controlled group for all drying methods, except for sun drying with carrageenan. Both carrageenan and
alginate added into semi-dried catfish jerky increased the processing yields. The addition of 2%
carrageenan (2%C) and 1% alginate (1%A) improved the product yields for all drying methods. This
paper argues that the application of cabinet dryer gives better shelf stability due to the lower range of
water activity than other drying methods while preserving colour quality and product yields.

Matched MeSH terms: Colloids
Fulltext Effects of xanthan gum and HPMC on physicochemical and microstructure properties of sponge cakes during storage

Noorlaila A, Hasanah HN, Yusoff A, Sarijo SH, Asmeda R

J Food Sci Technol, 2017 Oct;54(11):3532-3542.
PMID: 29051648 DOI: 10.1007/s13197-017-2810-6

The effects of xanthan gum (XG) and hydroxypropyl methylcellulose (HPMC) in sponge cakes were studied. Hydrocolloids enhanced the thickening effect in batter that affected the textural attributes of sponge cakes. During storage, the structural changes in XG-cake resulted in higher hardness compared to HPMC-cake. Similar to XG, HPMC also contributed moistness to cake. The moisture loss of cake containing XG was slower than HPMC-cake. FTIR study showed absorption of OH at region of 3600-2900 cm-1 that explained the strong interaction of water in cake containing XG compared to other cake formulations.

Matched MeSH terms: Colloids
Fulltext Efficacy of chitosan derivative films versus hydrocolloid dressing on superficial wounds

Halim AS, Nor FM, Mat Saad AZ, Mohd Nasir NA, Norsa'adah B, Ujang Z

J Taibah Univ Med Sci, 2018 Dec;13(6):512-520.
PMID: 31435371 DOI: 10.1016/j.jtumed.2018.10.004

Objectives: Chitosan, the N-deacetylated derivative of chitin, has useful biological properties that promote haemostasis, analgesia, wound healing, and scar reduction; chitosan is bacteriostatic, biocompatible, and biodegradable. This study determined the efficacy of chitosan derivative film as a superficial wound dressing.
Methods: This multicentre randomised controlled trial included 244 patients, of whom 86 were treated with chitosan derivative film and 84 with hydrocolloid. The percentage of epithelisation, as well as patient comfort, clinical signs, and patient convenience in application and removal of the dressings were assessed.
Results: The primary outcome of this study was the percentage of epithelisation. Except for race (p = 0.04), there were no significant differences between groups in sex, age, antibiotic usage, or initial wound size (p > 0.05). There was no significant difference in the mean epithelisation percentage between groups (p = 0.29). Patients using chitosan derivative film experienced more pain during removal of dressing than those in the hydrocolloid group (p = 0.007). The chitosan derivative film group showed less exudate (p = 0.036) and less odour (p = 0.024) than the control group. Furthermore, there were no significant differences between groups in terms of adherence, ease of removal, wound drainage, erythema, itchiness, pain, and tenderness. No oedema or localised warmth was observed during the study.
Conclusion: This study concluded that chitosan derivative film is equivalent to hydrocolloid dressing and can be an option in the management of superficial and abrasion wounds.
Clinical trial No: NMRR-11-948-10565.

Matched MeSH terms: Colloids

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